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(No Model.)

J. W. HYATT GOAGULANT EEEDEE.

No. 362,966 Patented Mey 17, 1887.

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UNITED STATES JOHN lV. HYATT, OF NEVARK, NEV JERSEY.

COAGULANT-FEEDER.

SPECIFICATION forming part of Letters Patent 1\To.362,966l dated May 17, 1887.

(No model.)

To all whom it may concern:

Be it known that lf, JOHN \V. HYATT, a citizen of the United States, residing at Newark, Essex county, New Jersey, have invented certain new and useful Irnprovcmcntsin Coagulant-Feeders, fully described and represented in the following specification and thc accompanying drawings, forming a part of the same.

The object of this invention is to feed any coagulant or precipitant-as lime-paste or solution ofiron or alum-to the impure water before filtration.

The invention consists iu a particular construction for the eoagulant-feeder patented to ine February 19, 1881, as No. 293,749; and it consists in the combination, with a motor interposed in themain supply-pipe to aiilter, of a coagulant-receptacle separated from such supply-pipe by a partition, which is perforated to permit the discharge of the chemical agent from the receptacle when expelled by a moving piston.

In the annexed drawings, Figure l represents in side elevation a motor inserted in the filter supply-pipe and the injector attached to such pipe, the injector and other parts being shown in section where hatched, and the pulley and belt for actuating the inj eetorserew being omitted. Fig. 2 is a plan of the apparatns, including such belt and pulley.

A is the filter supply-pipe, and B a motor inserted therein. llhe motor is shown herein of rotary form, but may be made ofany suitable shape or character.

C is the injector-cylinder, shown herein as connected directly with a pipe-section, A', which is interposed in said pipe by flanges A2. The cylinder is separated from the supply-pipe by a partition, d, provided with a perforation, 0, through which the contents of the cylinder are expelled by a piston, c. This piston is provided in its center with a screwthread fitted through a screw, j", which is rotated by a worin-wheel, G, and worm H. The latter is carried by a shalt, le, in a bracket, Z, upon a seat, m, formed on the section A', and the shaft is provided with a pulley, y', which is actuated by a belt, t', from the motor-pulley b.

The rotation of the screw and the movement of the piston in the cylinder() are thus effected when the water passes through the pipe A,

and in the same proportion as the water is delivered to the filter, while the use ofthe worm and the thread upouthe screw f produces a very slow movement ofthe piston in relation to the llow of the water. Such movement is proportioned by the sizes ofthe pulleys Z) and j to deliver the required amount of coagulant or precipitant to a given volume oflluid which passes to the lter. The shank of the screwf is shown passed through the pipe A, and the worm-wheel affixed upon the upper end and provided with a handle, a.

The brackctl is secured to the seat m by bolts m', passing through slots Z', and the worm may thus he shifted out ofgear with the wheel G when the fluid is all discharged from the cylinder C, and it is necessary to refill the same. Vhen the worm is thus disengaged, the handle a may be used to quickly reverse the rotations ofthe screw f, and the piston may be thus removed to the lower end ofthe cylinder, as shown in Fig. l, and the latter be rc-- lilled through a pipe, p, and funnel p.

The pipe is provided with a cock, q, to close it when the cylinder is filled, and a pipe, s, is shown connecting the lower end of the cylinder C with the iluid in the pipe A, to balance the pressures upon the opposite side of the piston c, and thus diminish the stress upon the screwfin propelling the latter.

A cup-leather packing, r, is shown applied to a stuffing-box around the shank of the screw adjacent to the wheel y, and the fluid is thus prevented from escaping from the pipe A, over which said shank passes. The advantage of this particular construction isits compactness and cheapness and the facility with which the injector and its rotative mechanism may be applied to the filter supply-pipe in connection with the detachable section A. The essential part of the invention is therefore the construction of the injector-eyliiuier adjacent to such section, and separated therefrom only by a partition, d, through a perforation in which the coagulant and precipitant may be injected directly into the passing fluid.

l hereby disclaim the subjeet-matter of my said Patent No. 293,749, in which the motor in the filter supply-pipe is claimed in co1nbination with an ejector delivering coagulant into said pipe.

Having thus set forth the nature and advan tages of niy invention, whatI claim herein is- 1. The combination, with the lter supplypipe and a motor insertedvtherein, ofthe pipesection A', the injector-cylinder C, provided with the piston g and the screw f, and separated from the said section by a partition, d, provided with perforationsk o, and the screw adapted to be rotated by a connection to the motor, substantially as herein set forth.

2. The combination, with the lter suppl ypipe and a xnotor inserted therein, of thepipesection A', the injector-cylinder C, provided with a piston, g, and the screw f, and separated from the Said section by a partition, d, provided with a perforation, o, the screw being,` extended through the pipesection A', and provided with a Stuffing-box, a worm-wheel, and a worm adapted t0 throw out of gear, such Worm adapted to be rotated by a connection to the motor, substantially' as shown and 2o described.

3. The combination, with the filter supplyypipe and a motor inserted therein, of the pipe- JOHN w. HYATT.

Witnesses:

THos. S. CRANE, O. N. BALDWIN. 

